Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2025 | 31,931 | $4,473 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 129,491 | $16 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 9,482 | $1 | $142.96 | $128.51 - $157.09 |
| Q3 2024 | 62,915 | $12 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 24,856 | $6 | $217.32 | $189.44 - $237.54 |
| Q3 2023 | 209,160 | $54 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 56,852 | $16 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 104,296 | $29 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 77,859 | $22 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 50,561 | $13,500 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 57,341 | $11,694 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 32,550 | $6,855 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 14,967 | $3,591 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 13,860 | $3,922 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 30,432 | $10,538 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 2,987 | $836 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 9,163 | $2,244 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 3,291 | $934 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 23,656 | $6,329 | $300.59 | $257.60 - $350.24 |
| Q4 2019 | 918 | $272 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 36,837 | $8,576 | $232.85 | $215.78 - $246.99 |